AWS Certified SysOps Administrator Official Study Guide. Cole Stephen

understand for this exam include the following:

      ■ Deploying, managing, and operating scalable, highly available, and fault tolerant systems on AWS

      ■ Migrating an existing on-premises application to AWS

      ■ Implementing and controlling the flow of data to and from AWS

      ■ Selecting the appropriate AWS service based on compute, data, or security requirements

      ■ Identifying appropriate use of AWS operational best practices

      ■ Estimating AWS usage costs and identifying operational cost control mechanisms

      In general, certification candidates should have the following:

      ■ One or more years of hands-on experience operating AWS-based applications

      ■ Experience provisioning, operating, and maintaining systems running on AWS

      ■ Ability to identify and gather requirements to define a solution to be built and operated on AWS

      ■ Capabilities to provide AWS operations and deployment guidance and best practices throughout the lifecycle of a project

      The exam covers seven different domains, with each domain broken down into objectives and subobjectives.

      Objective Map

      The following table lists each domain and its weighting in the exam, along with the chapters in the book where that domain’s objectives and subobjectives are covered.

      Assessment Test

      1. You notice in the AWS Management Console that your Amazon Elastic Compute Cloud (Amazon EC2) Instance State is Failed. What would cause this?

      A. Loss of network connectivity

      B. Loss of System Power

      C. Incompatible kernel

      D. Software issues on the physical host

      2. What is the difference between a Public Subnet and a Private Subnet in a VPC?

      A. The Route Table in the Private Subnet has a route to the Network Address Translation (NAT), while the Route Table in a Public Subnet does not.

      B. The Route Table in the Public Subnet has a route to the Internet Gateway (IGW), while the Route Table in a Private Subnet does not.

      C. The Public Subnet has NAT server, while a Private Subnet does not.

      D. Only Elastic Load Balancers are allowed in the Public Subnet.

      3. You have deployed eight Amazon Elastic Compute Cloud (Amazon EC2) instances in the us-west-1a Availability Zone and two Amazon EC2 instances in us-west-1b Availability Zone. You noticed that the two Amazon EC2 instances in us-west-1b received the same amount of traffic that is load balanced between the other eight Amazon EC2 instances located in the us-west-1a Availability Zone. How can you fix this from the load balancer?

      A. Enable cross-load balancing on your load balancer.

      B. Create an Auto Scaling group, and configure it to balance out the instances between the Availability Zones.

      C. Create three instances in us-west-1b, and terminate three instances in us-west-1a.

      D. Migrate to an Application load balancer.

      4. You have launched an Amazon Relational Database Service (Amazon RDS) database instance running MySQL. When you created the Amazon RDS instance, you did not specify a maintenance window, and now you need to update the instance size from micro to large. If you request to have the update happen inside the maintenance window, what will occur?

      A. Nothing. The command will be ignored until you create and apply a maintenance window.

      B. Nothing. It is not possible to change the DB size using Amazon RDS.

      C. AWS will select and use a default maintenance window if one is not provided.

      D. AWS will prompt you to provide a maintenance window when you make the request.

      5. Which of the following is the customer’s responsibility in the Shared Responsibility Model?

      A. Restricting access to Amazon Elastic Compute Cloud (Amazon EC2) using Security Groups

      B. Restricting physical access to AWS datacenters

      C. Destroying physical media used in AWS datacenters

      D. Managing updates to the Hypervisors on which instances run

      6. You are tasked with storing 200 GB of archival images that are requested infrequently, averaging one or two requests per image each day. Which is the most cost effective storage option for the images?

      A. Amazon Elastic Block Store (Amazon EBS) io1

      B. Amazon EBS gp2

      C. Amazon Simple Storage Service (Amazon S3)

      D. Amazon Elastic File System (Amazon EFS)

      7. You need storage for your production MySQL database. The database is 19 TB in size, and you will need to have approximately 10,000 IOPS – mostly writes. Without considering price, which storage option satisfies the requirements?

      A. Provisioned Amazon Elastic File System (Amazon EFS) 20 TB volume with 10,000 IOPS

      B. Two provisioned Amazon EFS 10 TB volumes with 5,000 IOPS per volume and RAID0 striping

      C. Provisioned Amazon Elastic Block Store (Amazon EBS) (io1) 20 TB volume with 10,000 IOPS

      D. Two Provisioned Amazon EBS (io1) 10 TB volumes with 5,000 IOPS per volume and RAID0 striping

      8. What is the purpose of Amazon Elastic Compute Cloud (Amazon EC2) user data?

      A. To install software on the Amazon EC2 instance at boot

      B. To list any public keys associated with the instance

      C. To show a Public IP address to an Amazon EC2 instance

      D. To show the localhost name for the instance

      9. You have created an Amazon Virtual Private Cloud (Amazon VPC) with the CIDR of 10.0.0.0/16. You now need to divide that VPC into a Public Subnet and a Private Subnet. Which one below is a valid combination?

      A. Public 10.1.0.0/24

      Private 10.2.0.0/24

      B. Public 10.0.0.1/24

      Private 10.0.0.2/24

      C. Public 10.0.1.0/24

      Private 10.0.2.0/24

      D. Public 10.0.1.0/16

      Private 10.0.2.0/16

      10. You have created an Auto Scaling group with a minimum of two Amazon Elastic Compute Cloud (Amazon EC2) instances, a maximum of six instances, and a desired capacity of four instances. Your instances take 20 minutes to launch, and they take three minutes to start once built. How can you configure autoscaling to start and stop instances versus launching new instances from Amazon Machine Instances (AMIs)?

      A. Create a new Auto Scaling launch configuration, and configure the Auto Scaling group to start the instances.

      B. Edit the Auto Scaling group’s launch configuration to start instances.

      C. This is not possible, as Auto Scaling cannot stop and start instances.

      D. Configure the Auto Scaling group to use the Amazon EC2 recovery service.

      11. You have a Multi-AZ Amazon Relational Database Service (Amazon RDS) database running MySQL. During a planned outage, how does AWS ensure that, when switching from the primary DB to the standby, it will not affect your application servers?

      A. Amazon RDS uses Elastic IP addresses that are detached from the primary database and then attached to the standby instance. This promotes the standby to be the primary.

      B.